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Showing posts with label hardwar. Show all posts
Showing posts with label hardwar. Show all posts

Saturday, December 11, 2010

How to Stop Noise in a DC Fan Motor

Quiet fan noise with a single drop of machine oil.
Quiet fan noise with a single drop of machine oil.
pc lüfter image by pmphoto from Fotolia.com
DC fans commonly known as PC case fans are designed with a sleeve bearing assembly. These fans are designed to work without the user being aware of their existence. However; fan motor noise is your first indication that the assembly is not perfect. DC fan motor noise occurs when the lubrication on the sleeve bearing shaft has dried up. Most users discard the fans and by new ones, unaware that these fans can be lubricated. Lubricating the DC fan motor will returns the fan to a quiet running state and prevent eventual malfunction.
Difficulty: Easy

Instructions

Things You'll Need:

  • Phillip's screwdriver
  • Flat-head screwdriver
  • 3-in-1 machine oil
  1. 1
    Open the computer case. Use a bristled brush to remove dust buildup from the DC computer fans. Vacuum the dust from the case using a small attachment to fit into tiny cracks. Be careful not to scrape across the components in the case.
  2. 2
    Remove the fan that is causing the noise. DC computer fans have a screw at each corner securing them to the case. Remove these screws with a Phillip's head screw driver.
  3. 3
    Lay the fan on a flat work surface with the front facing up. Peel away the sticker at the center of the fan to reveal a small rubber plug. The rubber plug is the cap for the lubrication well.
  4. 4
    Insert the head of a small flat screw driver between the rubber plug and the fan casing. Pry the plug out gently to expose the fan motor. Apply a single drop of 3-in-1 machine oil to the center of the lubrication well. Spin the fan with your fingers to lubricate the shaft inside. Reinstall the case fan.

Tips & Warnings

  • Lubricating the fan extends its life and protects your computer from high temperatures.
  • Do not use WD-40 for this project; WD-40 is a light weight lubricant that contains a solvent dangerous to computer components.

Build a USB to Game Port Converter

Before USB cables became commonplace in the computer world, users would connect their game joysticks to special computer ports known simply as "game ports." In the event that you want to connect a USB joystick to one of these "game ports," you must construct a special converter cable. As long as you have the right equipment, constructing the cable and connecting your USB joystick is a simple process.
Difficulty: Easy

Instructions

Things You'll Need:

  • Male-to-male game port cable
  • USB-to-game port cable adapter
  • USB cable extender
  1. 1
    Connect one end of your male-to-male game port cable to the port on your USB-to-game port adapter cable.
  2. 2
    Connect the USB end of your USB-to-game port adapter cable to one of the ports on your USB cable extender.
  3. 3
    Insert the USB connector from your USB joystick to the other port on your USB cable extender. The complete converter cable is now constructed.
  4. 4
    Connect the game port connector, which is now wired to your USB joystick, to the appropriate port on your computer. The computer will now recognize the USB joystick through the game port cable.
by me

Tuesday, December 7, 2010

16x Dvd+-rw Dl Dvd Writer Comparison Guide

Since the introduction of double layer DVD writers, the interest has been quite overwhelming and is why we keep bringing you reviews of these highly popular drives. The anticipation has now turned into down right obsession and it has become a key component in any current or new system build, thanks to the declining prices and continued media hype. Manufacturers are quite aware of the fascination and is why they have each been releasing their own products which excel in at least one area of the testing methodology used in most reviews. This has led to some confusion as to which drive is best suited for the individuals needs. Today, we compare four 16x double layer drives and highlight both the strong and weak points in order to give you a better idea of which drive is best suited for you.


In this comparison guide, we will be looking at four of the top 16x drives to hit the market, the Pioneer DVR-108, NEC ND3500A, Lite-On SOHW-1633s and the new LG GSA-4160B. We will cover everything from design and features to performance and price. Let's begin with a quick look at each of these drives.


As far as the front bezel design goes, the LG-GSA4160B is by far the most attractive drive of the bunch. However, for those who are looking for a headphone jack, the Lite-On drive is the only DL writer offering a headphone jack, as well as volume control. The Pioneer and NEC drives, in my opinion, are the ugliest drives, with a very plain look that just wants to make you hide the drive period. Although we only obtained the 4160B in black, all these drives are offered with both white and black bezels. If you opt for the more expensive Pioneer "XL" model, it has the most impressive looks of any drive in the market. However, this will come at a very hefty price tag, considering they contain different firmware as well that offer a few extra features.

So, we have determined which is the sexiest-looking drive, but what about performance? I've done some extensive testing on each model to determine which is indeed the most impressive of the bunch. But before we show you performance results, let's briefly look at the features and what they have to offer.

Features



Each one of these drives has there disappointments when it comes to features. Let's compare each to see what they really offer.



DVD Writing



DVD+R DVD-R DVD+RW DVD-RW
LG GSA-4160B 16x 8x 4x 4x
Lite-On SOHW-1633s 16x 8x 4x 4x
NEC ND-3500A 16x 16x 4x 4x
Pioneer DVR-108 16x 16x 4x 4x



While all these drives are indeed 16x models, only two will write to both formats at this speed. The LG GSA-4160B and the Lite-On SOHW-1633s only support 8x DVD-R writing. So if you are one who only prefers this format, the NEC or Pioneer would be the best choice. All of these drives support writing to DVD re-writable media at 4x.



DVD+R9 Double Layer Writing



Write Speed
LG GSA-4160B 2.4x
Lite-On SOHW-1633s 2.4x
NEC ND-3500A 4x
Pioneer DVR-108 4x



The major disappointment with both the LG and the Lite-On 16x drives is the lack of 4x double layer writing support. Pioneer and NEC seem to be the only manufacturers to jump in and release second generation double layer drives supporting much faster 4x writing. In fact, the jump from 2.4x to 4x is quite substantial as we will show you a bit later in this comparison.



DVD-RAM Support



Supported Read Write
LG GSA-4160B YES 5x 5x
Lite-On SOHW-1633s NO NO NO
NEC ND-3500A NO NO NO
Pioneer DVR-108 YES 2x NO



Now this is where both the LG GSA-4120B and GSA-4160B shine above the rest. In fact, it is what has made these drives the most popular DVD writers on the market. Unlike the rest in the roundup, it is a triple format burner, offering full support for DVD-RAM media. The other drives do not support it, with the exception of the Pioneer DVR-108 which supports reading of DVD-RAM discs at 2x. I personally don't see the point in offering only read capabilities, but it's at least one extra feature added to distinguish it from the rest. Fast 5x support of the LG GSA-4160 will actually be tested a bit later in this article.



CDR Writing



CDR CDRW
LG GSA-4160B 40x 24x
Lite-On SOHW-1633s 48x 24x
NEC ND-3500A 48x 24x
Pioneer DVR-108 32x 24x



The fastest CDR writers of the bunch are the Lite-On SOHW-1633s and the NEC ND-3500A. With their support for 48x writing, they make a great all-in-one drive for many users. The only drive lacking in this lineup is the Pioneer DVR-108. Why they opted for only 32x writing is still quite puzzling and is actually why I have found that many are choosing the NEC over the Pioneer. The LG GSA-4160B should not be left out of consideration though. We will show you later that the difference in write times between 40x and 48x is not much to brag about.



Bitsetting Support



One feature I've found that is most important for many users is bitsetting support. Let's compare these drives and see what they offer.



DVD+R/RW Support DVD+R DL Support
LG GSA-4160B NO NO
Lite-On SOHW-1633s YES NO
NEC ND-3500A NO YES
Pioneer DVR-108 NO YES



The LG GSA-4160B does not offer bitsetting support out of the box. However, it is very likely that you will be able to obtain support through an excellent third-party tool called DVDInfo Pro. Right now, they only support the GSA-4120B, but I'm confident with the author that support for this drive will be likely. LG firmware is very hard to hack, however some select few have been able to do so. Using Lite-On's booktype utility, you can change the booktype of DVD+R/RW media, however, the firmware does not automatically change booktype of DVD+R DL discs to DVD-ROM like the NEC and Pioneer models do.



Additional Features



As far as other features go, all these drives have a 2MB buffer but offer some sort of buffer under-run protection, which all work exceptionally well. This is especially useful if you will be burning discs at 16x, which I personally don't recommend just yet. As our individual tests of these drives revealed, burning at this speed is quite unstable, with the exception of the Lite-On SOHW-1633s.

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